Solar Energy for St. Louis Businesses
St. Louis businesses face a unique mix of energy challenges. Hot, humid summers drive up cooling costs, while winter storms and grid congestion can strain reliability, especially for manufacturers, schools, and service-based businesses that rely on consistent power. On top of that, electricity rates across the region have steadily increased, making energy one of the largest and least predictable operating expenses.
From a farm in rural Belleville, to a drugstore in the heart of St. Louis, to a hotel in hilly Eureka, St. Louis area businesses are turning to solar to control costs, improve resilience, and invest locally. With abundant rooftop space and strong solar production potential, the St. Louis region is well suited for commercial solar installations.
EFS Energy has been helping businesses across St. Louis and southern Illinois take advantage of solar energy since 2011, combining local experience with proven system design and installation.
Services Specific to the St. Louis Area
Who We Serve
We design and install commercial solar systems for a wide range of organizations throughout St. Louis and the surrounding regions, including:
- Farms and agricultural operations
- Car dealerships and retail businesses
- Manufacturing and industrial facilities
- Schools and educational institutions
- Commercial service providers and office buildings
What We Offer Our St. Louis Community
Commercial Solar Consulting
We start with a site-specific consultation, reviewing your facility, energy usage, and utility requirements. You’ll receive a specific plan that outlines system size, estimated savings, incentives, and timelines, so you can make informed decisions with confidence. Our team is prepared to answer all your solar questions and provide you with
Commercial Solar Installation
Our team manages your entire project, from engineering and permitting to construction and utility interconnection. We coordinate closely with local utilities and inspectors to ensure a smooth installation and long-term system performance.
Helping St. Louis Businesses Become Energy Independent
Barron Swim School / Barron Gymnastics
St. Louis, MO – 2019
Business owner and operator Joe Barron installed over 175 kW of rooftop solar across his two facilities, that continue to produce approximately 230,000 kWh per year. By leveraging Ameren Missouri’s net metering program, these systems have helped avoid nearly $115,000 in operating costs since installation.
Industrial Battery Products (IBP)
St. Louis, MO – 2022
Specializing in energy solutions such as batteries and chargers, IBP wanted to investigate a solar application designed to reduce their utility burden. IBP installed a 115-kW rooftop system that produces over 145,000 kWh annually. As of July 2025, the system has eliminated more than $40,000 in utility expenses, helping stabilize the company’s long-term operating costs.
Renner Farm
Belleville, IL – 2017
Tom Renner, a legend in Midwest agriculture, installed a 166-kW solar system to power his agricultural operation, John Deere dealership, and antique tractor museum. He used a custom rooftop design that maximized energy production with fewer panels. This system continues to cover 100% of the farm’s energy needs and saves Tom approximately $20,000 per year, supporting both long-term sustainability and operational efficiency.
Lindenwood Drug
St. Louis, MO – 2017
Located on Lansdowne Ave, a few blocks north of Ted Drewes, this iconic drugstore installed a 22-kW system that continues to save over $300 per month since its installation. The project has become a neighborhood landmark and a visible example of local businesses investing in clean energy.
Solar Incentives for St. Louis Area Business owners
Businesses in St. Louis and southern Illinois may qualify for several incentives, including:
Federal Clean Electricity Tax Credit (48E)
A federal investment tax credit for qualifying commercial solar projects.
Accelerated Depreciation (MACRS)
Allows businesses to depreciate solar assets faster, improving cash flow.
Net Metering (Missouri)
Eligible systems can earn bill credits for excess electricity sent to the grid.
USDA REAP Grants
Available to qualifying rural and agricultural businesses.
Incentives vary by project type, ownership structure, and timing. Our consulting team will identify the best combination for your business.
Communities We Serve in and Near St. Louis
Missouri:
Brentwood, Chesterfield, Clayton, Creve Coeur, Dutzow, Eureka, Imperial, Kirkwood, Ladue, Maplewood, Maryland Heights, Richmond Heights, St. Louis City, University City, Washington, Webster Groves
Southern Illinois:
Addieville, Belleville, Breese, Carrier Mills, Caseyville, Columbia, Freeburg, Germantown, Marissa, Mascoutah, Nashville, O’Fallon, Okawville, Shiloh, Tamaroa, Trenton, Valmeyer
We work with companies in many cities throughout the St. Louis region. Contact us to find out if we serve your location.
St. Louis Area Solar FAQs
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What percentage of businesses in St. Louis have made the switch to solar?
Adoption continues to grow each year, especially among manufacturing, education, agriculture, and retail sectors, as costs decline and incentives improve.
What is the average commercial system size in St. Louis?
Most St. Louis commercial systems range from 50–300 kW, depending on roof size and energy usage. Our expert team will determine the right size system to meet your energy needs.
How long is the payback period?
Many projects see payback in under 5 years, depending on incentives and energy usage.
How long do solar systems last in St. Louis?
Commercial solar systems typically last 25–30+ years.
How much can I save with a solar system?
A: Savings vary, but many St. Louis area businesses reduce electricity costs by 40–70%, and sometimes even 100%.
Schedule Your Free St. Louis Solar Consultation
If you’re ready to explore solar for your St. Louis–area business, EFS Energy is here to help. Schedule a free 30-minute consultation to speak with a local solar expert, evaluate your site, and see how solar can work for your operation—now and for decades to come.
3407 S. Jefferson Ave.
St. Louis, MO 63118